body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f5f5f5;
}

.upload-container {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.upload-area {
    border: 2px dashed #ccc;
    padding: 20px;
    text-align: center;
    margin-bottom: 20px;
    border-radius: 4px;
    cursor: pointer;
}

.upload-area.dragover {
    border-color: #2196F3;
    background-color: #E3F2FD;
}

.result-container {
    display: none;
    margin-top: 20px;
}

.url-group {
    margin-bottom: 15px;
}

.url-label {
    font-weight: bold;
    margin-bottom: 5px;
    display: block;
}

.url-content {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}

.url-text {
    flex-grow: 1;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #f8f8f8;
}

.copy-btn {
    padding: 8px 15px;
    background-color: #2196F3;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.copy-btn:hover {
    background-color: #1976D2;
}

.preview-image {
    max-width: 100%;
    margin-top: 20px;
}